Microsoft · Security update · January 12, 2021

KB4598279: January 2021 security update

KB4598279, released January 12, 2021, fixes 34 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

UrgentUnsupported product
CVEs closed
34
7 rated Critical
Exploited
0
None reported
Exploitation more likely
1
Vendor assessment
Highest EPSS
0.0470
91st percentile

Priority of the 34 CVEs

Patch now 0 Urgent 8 High 20 Routine 6

Applies to

Product
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Urgent CVE-2021-1665 Microsoft Graphics Component Remote Code Execution 7.8 0.0406 Exploitation Less Likely
Urgent CVE-2021-1668 Microsoft DTV-DVD Video Decoder Remote Code Execution 7.8 0.0392 Exploitation Less Likely
Urgent CVE-2021-1667 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0387 Exploitation Less Likely
Urgent CVE-2021-1658 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0320 Exploitation Less Likely
Urgent CVE-2021-1660 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0320 Exploitation Less Likely
Urgent CVE-2021-1666 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0320 Exploitation Less Likely
Urgent CVE-2021-1673 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0320 Exploitation Less Likely
Urgent CVE-2021-1709 Microsoft Graphics Component Elevation of Privilege 7.0 0.0079 More likely
High CVE-2021-1700 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0387 Exploitation Less Likely
High CVE-2021-1701 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0387 Exploitation Less Likely
High CVE-2021-1694 Windows Update Stack Elevation of Privilege 7.5 0.0351 Exploitation Less Likely
High CVE-2021-1664 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0320 Exploitation Less Likely
High CVE-2021-1671 Windows Remote Procedure Call Runtime Remote Code Execution 8.8 0.0320 Exploitation Less Likely
High CVE-2021-1674 Windows Remote Desktop Security Feature Bypass 8.8 0.0320 Exploitation Less Likely
High CVE-2021-1706 Microsoft Windows Elevation of Privilege 7.3 0.0225 Exploitation Less Likely
High CVE-2021-1704 Windows Hyper-V Elevation of Privilege 7.3 0.0103 Exploitation Less Likely
High CVE-2021-1657 Microsoft Windows Remote Code Execution 7.8 0.0095 Exploitation Less Likely
High CVE-2021-1695 Windows Print Spooler Components Elevation of Privilege 7.8 0.0087 Exploitation Less Likely
High CVE-2021-1661 Windows Installer Elevation of Privilege 7.8 0.0083 Exploitation Less Likely
High CVE-2021-1649 Microsoft Windows Elevation of Privilege 7.8 0.0079 Exploitation Less Likely
High CVE-2021-1652 Windows CSC Service Elevation of Privilege 7.8 0.0079 Exploitation Less Likely
High CVE-2021-1653 Windows CSC Service Elevation of Privilege 7.8 0.0079 Exploitation Less Likely
High CVE-2021-1654 Windows CSC Service Elevation of Privilege 7.8 0.0079 Exploitation Less Likely
High CVE-2021-1655 Windows CSC Service Elevation of Privilege 7.8 0.0079 Exploitation Less Likely
High CVE-2021-1693 Windows CSC Service Elevation of Privilege 7.8 0.0079 Exploitation Less Likely
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